You are required to configure a Coherence cluster for a WebLogic domain. Review the image below for the architecture of the WebLogic domain. 

The configuration represents the following: ✑ Two WebLogic clusters of n number of servers each ✑ One cluster contains an EAR deployment that contains a WAR module and a GAR module ✑ One cluster contains a GAR deployment ✑ Application data flows into the cluster with the EAR deployment and then to the cluster with the standalone GAR deployment Based on this configuration, what is the typical configuration of a Coherence cluster for this domain? 

Answer options:

A. Single Coherence cluster that includes both WebLogic clusters. EAR cluster is storage-disabled. GAR cluster is storage-enabled.
B. Single Coherence cluster that includes both WebLogic clusters/ EAR cluster is storage-enabled. GAR cluster is storage-disabled.
C. A Coherence cluster for each WebLogic cluster. EAR and GAR clusters use a replicated topology with storage enabled.
D. Single Coherence cluster that includes both WebLogic clusters. EAR and standalone GAR clusters are both storage-enabled.

A

A Coherence cluster can contain any number of managed Coherence servers. The servers can be standalone managed servers or can be part of a WebLogic Server cluster that is associated with a Coherence cluster. * storage-disableda managed Coherence server that is not responsible for storing data and is used to host Coherence applications (cache clients). A Coherence application GAR is packaged within an EAR and deployed on storage-disabled managed Coherence servers. * storage-enableda managed Coherence server that is responsible for storing data in the cluster. Coherence applications are packaged as Grid ARchives (GAR) and deployed on storage-enabled managed Coherence servers. Reference: https://docs.oracle.com/middleware/1212/wls/CLUST/coherence.htm#CLUST660